This project is amazing, especially considering that you have been working on it on your own for 3 years. Lots of perseverance!

A similar project (albeit not open source) is Goo Create by Goo Technologies: http://goocreate.com/product/

It is being used by several companies in pretty large productions (including games, ads, educational projects, etc) both for desktop and mobile devices. You should really check it out.

Full disclosure: I work for Goo Technologies as a Frontend developer.